How to open an external image viewer to view a drawable instance in android?

Question

I have an ImageView that displays a picture in android. Essentially, I want to be able to open the picture in full screen with zooming capabilities when the ImageView is tapped.
Probably by using an external viewer to which I pass the drawable instance.

Other relevant information:

• Context: The image view is actually a ParseImageView (an extension of ImageView) which has been populated using a ParseFile (image file loaded from parse.com) asyncronously.
• minSDK: 14
• IDE: Android Studio

Answer 1

You may try the ImageViewTouch Library for zoom features with a single line of code,

setImageBitmap( final Bitmap bitmap, Matrix matrix, float minZoom, float maxZoom );